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Figure 9. A 77-year-old man with transitional cell carcinoma of the right ureter. (a) Maximum intensity projection (MIP) image from excretory MR urography (MRU) demonstrates right ureteral obstruction (arrow), hydronephrosis and hydroureter. (b) Original source image from excretory MRU shows a large hypointense filling defect inside distal ureter (arrows). (c) Axial T1 weighted image shows a hypointense soft-tissue mass (arrowhead) in the pelvis. (d) An area of subtle enhancement (arrowhead) is demonstrated on the axial section of a contrast-enhanced T1 weighted sequence.
